Sidewall portion of an automobile tire



FIG. 1 is a front view for a sidewall portion of an automobile tire showing our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a perspective view thereof;

FIG. 5 is an enlarged view showing the details of the sidewall portion defined by the brackets 5-5 in FIG. 1; and,

FIG. 6 is an enlarged sectional view taken along line 6-6 in FIG. 5.

The broken lines in the drawings are for the purpose of illustrating unclaimed portions of the tire and form no part of the claimed design. 

CLAIM The ornamental design for a sidewall portion of an automobile tire, as shown and described. 